85857969 has 8 divisors (see below), whose sum is σ = 115379200. Its totient is φ = 56787696.

The previous prime is 85857943. The next prime is 85858043. The reversal of 85857969 is 96975858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85857969 - 2⁷ = 85857841 is a prime.

It is a super-2 number, since 2×85857969² = 14743181681609922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85857929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112294 + ... + 113055.

It is an arithmetic number, because the mean of its divisors is an integer number (14422400).

Almost surely, 2^85857969 is an apocalyptic number.

It is an amenable number.

85857969 is a deficient number, since it is larger than the sum of its proper divisors (29521231).

85857969 is a wasteful number, since it uses less digits than its factorization.

85857969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225479.

The product of its digits is 5443200, while the sum is 57.

The square root of 85857969 is about 9265.9575328187. The cubic root of 85857969 is about 441.1573679561.

The spelling of 85857969 in words is "eighty-five million, eight hundred fifty-seven thousand, nine hundred sixty-nine".